Valve.



No. 650,259. Patented May 22, 1900.

' T. s. MARTIN.

VALVE.

. (Application filed Feb. .12, 1900.) (No Model.) 2 Sheets-Sheet l.

MQWW .JW' W@ i 'No. 650,259. Patente d'May 22, I900.

l T. s. MARTIN.

VALVE.

(Application filed Feb. 12, 1900.)

(No- Model.) 2 Sheets-Sheet 2.

- WITNESSES INVENTOH UNITED STATES PATENT OFFICE.

TIMOTHY s. MARTIN, or BUTTE, MONTANA.

VALVE.

SPECIFICATION forming part of Letters Patent No. 650,259, dated May 22, 1900,

Application filed February 12, 1900. Serial No, 4,939. (No model.)

them while the other valves are opened, and vice versa.

The invention is applicable to valves controlling the admission of steam or Water to radiators, and when used on a steam-radiator has the advantage of reducing the resistance to the boiler-pressure.

The invention will be fully described, and the features of novelty pointed out in the appended claim.

Reference is to be had to the accompanying drawings, in which Figure 1 is a perspective view of my invention as applied to a radiator with parts shown in section; and Fig. 2 is a central sectional elevation, with parts broken away, looking toward the radiator.

The radiator may beof any usual or approved construction, and, as shown, comprises upright tubes A, connected with an upper circulating-tube B and with a lower circulating-tube B in the usual manner. At the ends of the said tubes B B is located the valve-casing D, provided with chambers O O, communicating with said tubes B B, respectively. The casing also contains chambers E E, of which the chamber E is separated from the chamber; 0 bya partition F, having an aperture adapted to be closed by the valve G, while the chamber 0 is similarlyseparated from the chamber E by an apertured partition F, controlled by the valve G. The chambers E E are separated by the partition F having an aperture adapted to be closed by the valve G The valves G G have rods H H, passing through the stufifing-boxes S and connected with each other at their outer ends bya head In The valve G is secured to the rod H attached at its outer end to a cross arm or head I. The heads I I are provided with axiallyalining-apertures screw-threaded in opposite directions and adapted to receive correspondingly-threaded sections J J of the operatingshaft J provided with a hand-wheel J The other end of the shaft J is held to turn, as at J in a plate D, which is rigidly connected with the valve-casing D, the shaft being capable of turning in the said plate, but held against longitudinal movement therein. The chambers E E have connections, such as pipes K K, leading to the boiler or other source of supply of the heating medium.

The valves are so attached to the heads I I that when the valve G is closed, as shown in the drawings, the valves G G are opened. In this case the steam ma; enter through one of the pipes-as-, for instance, the pipe K and will then flow through the chamber E, the partition F, the chamber 0, the tubes B A B, the chamber 0, through the partition F, the chamber E, and back to the boiler through the tube K. If then the hand-wheel J 3 is turned, the opposite screw-threads J J will cause the head I to move outward and the head I to move inward. Thus the valve G will be opened, while the valves G G will be closed. The radiator-tubes A B B and the chambers O C will therefore be cut OE and steam will pass from the tube K into the chamber E, through the partition E into the chamber E, and out through the tube K to the boiler. It will be seen that when steam is cut ofi from the radiator the steam will not encounter a solid closed valve at the ra diator, as in the customary construction, but will be able to pass through the valve-casing and back to the boiler, thereby obviating any resistance against boiler-pressure, which would be caused if the steam were cut short at the radiator. This feature is believed to be particularly valuable and economical where exhaust-steam is used, in that the resistance against the engine is materially diminished. I

Having thus described my invention, I claim as new and desire to secure by Letters Patent-'- The combination of the valve-casing comprising two chambers each adapted for connection with a fluid-supply, the casing having a central apertured partition between said chambers, and having f urthcr two outer cl1a1nbers and two outer apertured partitions, one between each outer chamber and; the"aigi iiit cent chamber which is connected with the fluid-supply, a central valve arranged to open and close the aperture in the centrai'fiarti tion, two lateral valves arranged to closejhe apertures in the outer partitions, a cross-head connecting said outer valves and provlded with a screw-threaded aperture, a head connected with the central valve and having an aperture with a screw-thread of a directi-om opposite to that of-said- "cross-head, the .two-

avalve-operat'riig shaft mountedtdturn in the casingbut held against lengthwise movement and provided with screw-threads of opposite directions engaging the threaded apertiiresin the valve-heads. I i. 111.. testimony whereof, I have signed my nameto this specification in the presence of 20 two subscribing witnesses.

TIMOTHY s. MARTIN.

Witnesses:

threaded apertures being 'ali ned axiaHy and i JAMES, 7W. EoRBIs,-- 910A 96%. i 

